The FA’s failure to punish the biggest child in the playground makes a mockery of "Respect" campaigns.

As Sir Alex Ferguson strolled towards the tunnel at Old Trafford on Boxing Day, his arm draped around the shoulder of his match winner, Mexican striker Javier Hernandez, the most decorated coach in the history of English football could reflect on another job well done.

Rewind 45 minutes, however, and the 70-year-old Manchester United manager had been anything but calm and serene.

Fresh from watching his team concede two goals in a league match for the ninth time this season and incensed at what he felt was an offside strike against his side, the combustible Scotsman marched onto the Old Trafford turf to confront referee Mike Dean and assistant Jake Collin as the sides returned after half-time.

Dean, himself hardly a shrinking violet, was taken aback as Ferguson, more regularly a man to save his vitriol for post-match interviews, made a bee-line for the official and let loose - much to the delight of the watching 75,000.

Somewhat inevitably, once the tirade had passed and the match had been restarted, United shook off their festive lethargy and regained a stranglehold at the top of the Premier League.

Understandably, however, it was Ferguson’s conduct that attracted most column inches in the post-match press conference despite not registering a flicker of interest from the Football Association’s disciplinary committee.

While Harry Redknapp and Roberto Mancini found themselves in hot water over comments made about officials during the festive period, Ferguson also mysteriously evaded censure for his attack on Michael Oliver over the referee’s performance in the Manchester club’s draw at Swansea ten days ago.

To be fair, neither incident was much worse than any number of managerial indiscretions at league grounds all over the country every week and without a report from Dean, there is little under their own rules that the FA can do to punish Ferguson’s Boxing Day rant.

However, the sound of FA silence in the immediate aftermath of both fixtures was just another straw on the back of the most beleaguered of sporting bodies and an indication that there is one figure in English football operating above the law.

I wrote in September[3] how confused thinking over the Luis Suarez and John Terry racism sagas had drilled major holes in the credibility of the FA but this latest failure is arguably more damaging.

By neglecting to constrain the nation’s most prominent manager time and time again, the FA are not only setting a corrosive example to young players emerging in the professional game with an engrained sense of entitlement- but they are also adding to the entrenched sense of tribalism that continues to affect supporters, players and managers in England’s top division.

In fairness, respect for officials is only an easy notion to follow until your team cops a dodgy decision four minutes into injury time and Ferguson is not alone in failing to see the bigger picture.

For the man himself, such a series of rants are inconsequential and completely logical. If, by hammering an official or lambasting a journalist he can get a rise out of his players or, in last week’s instance, the crowd, he will have deemed the move justifiable.

And why not? The Scotsman is so rarely admonished for his displays of insanity that the risk of an occasional reprimand is more than worth the potential benefit.

But for a man so keen on securing his footballing legacy, surely Ferguson should be looking to leave a better impression as a human being as the clock winds down on his career.

As previous seasons have culminated in title winning moments for his club, Ferguson has been known to spend time away from the spotlight of the Premier League.

When his side captured a first league title in four years as Chelsea failed to win at Arsenal in May 2007, Ferguson himself was watching his grandson play a crucial school league game, rather than events at The Emirates.

In the wake of Ferguson’s conduct over the last fortnight, one has to ask what the 70-year-old’s grandson will have made of seeing his esteemed elder throw tantrum after tantrum on the hallowed Old Trafford turf.

Chelsea’s melodramatic former talisman Didier Drogba was eventually shamed into changing some of his ludicrous on pitch diving antics after a conversation with his young son, however it is difficult to see Ferguson having a similar conversation with his extended family.

This is where stronger FA action may actually help the godfather of the Premier League.

Ferguson could and should have been punished each and every time he missed mandatory press briefings at the end of matches covered by the BBC as a result of a 2004 documentary. Instead, the Scotsman was granted seven years of grace before the BBC themselves went to Old Trafford, bottle of wine in one hand and brokered peace.

The FA, fearing the influence of Ferguson, stood by and did nothing.

The reality is however, that Manchester United’s most successful manager would rather secure a third Champions League title of his tenure than temper any of his antagonistic instincts in order to be remembered as a great man as well as a fantastic manager.

Ferguson’s legacy, as he and millions of Manchester United fans may argue, will be defined by trophies captured and not by displays of occasional decorum.

Yet, if the FA are prepared to be harder on him and force some humility from Ferguson at times like these, the United boss might just be left with a debt of gratitude to the rulers of the English game when the final whistle is blown on his career.